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Physics Quiz > Chapter 3 > Flashcards

Chapter 3 Flashcards

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Physics 101 flashcards AP® Physics flashcards
1
Q

The type of energy in X-rays, radio waves, microwaves, & visible light

A

Electro magnetic energy

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2
Q

properties of electromagnetic energy

A

Frequency, wavelength, velocity and amplitude

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3
Q

An uninterrupted ordered sequence

A

Energy continuum

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4
Q

The smallest quantity of any type of electromagnetic energy, it maybe pictured as quantum

A

Photon

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5
Q

A small bundle of energy

A

Quantum

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6
Q

Who is James clerk Maxwell

A

In late 19th century, he showed that visible light has both electric and magnetic properties

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7
Q

Speed of light?

A

Velocity

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8
Q

What is the constant s1 unit of velocity and its constant British unit

A

Constant SI unit is 3x10^8 m/s
Constant British unit 186,000 mi/s

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9
Q

What is the velocity of electromagnetic radiation?

A

3 x 10^8 m/s

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10
Q

The interactions among different energies forces or masses

A

Field

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11
Q

It governs the interaction of different masses

A

Gravitational fields

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12
Q

It governs the interactions of electrostatic charges

A

Electric field

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13
Q

It governs the interaction of magnetic poles

A

Magnetic field

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14
Q

The variation in the movement of photons in electrical and magnetic fields, identical except for their amplitude

A

Sine wave

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15
Q

The width of a waveform, it is not related to wavelength or frequency

A

Amplitude

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16
Q

It describes variations in electric and magnetic fields as photons travels with velocity

A

Sine wave model of electromagnetic energy

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17
Q
  • It is equal to the number of crests or valley that pass the point of an observer per unit time
  • it is inversely proportional to the wavelength
  • the rate of rise and fall
A

Frequency

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18
Q

Si unit of frequency?

A

(Hz)

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19
Q

The number of wavelengths that pass a point of observation per second

A

Frequency

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20
Q

Distance from one crest to another

A

Wavelength

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21
Q

Three wave parameters

A

Velocity, frequency and wavelength

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22
Q

A continuum of electromagnetic energy

A

Electro magnetic spectrum

23
Q

Three regions important to radiologic science

A

Visible light region, X-ray region, radio frequency region

24
Q

Viewing condition of a radiographic and fluoroscopic images are critical diagnosis

A

Visible light region

25
Q

Fundamental producing high quality radiograph

A

Xray region

26
Q

With the introduction of MRI, become more important in medical imaging

A

Radio frequency region

27
Q
  • The wave of moving molecules
  • it require matter
  • cannot exist in vacuum
A

Ultrasound

28
Q

Not a part of the electromagnetic spectrum

A

Diagnostic ultra sound

29
Q

It occupies the smallest segment of electromagnetic spectrum, it is described in terms of wave length

A

Visible light

30
Q

The deviation of course that occurs when photos of visible light traveling in straight lines pass from transparent medium to another

A

Refraction

31
Q

2 invisible light

A

Infrared and UV light

32
Q

Infrared

A

Longer than visible light, shorter than microwaves it heats any substance on which it shines (radiant heat)

33
Q

UV light

A

It causes sunburn , lies between visible light and ionizing radiation

34
Q
  • Very short wavelength RF
  • higher than broadcast RF
  • lower than infrared
A

Microwave

35
Q

Higher energy and lower wave length

A

Ionizing radiation

36
Q

*It is emitted from the electron cloud
* it is produced in diagnostic imaging systems

A

Xrays

37
Q

*It comes from inside the nucleus of radioactive atom
* it is emitted spontaneously from radioactive material

A

Gamma rays

38
Q

They behave more like waves

A

Visible light photons

39
Q

They behave more like particles

A

Xray photons

40
Q

The principle that states that both wave and particle concepts must be retained ‘ because wave like properties are exhibited in some experiments and particle-like properties are exhibited in others.

A

Wave particle duality

41
Q
  • they are measured in meters
  • they interact with antennas
A

Radio and TV waves

42
Q
  • It is measured in centimeter
  • it interacts with hotdogs and hamburgers
A

Microwave

43
Q
  • it is measured in nanometer
  • it interacts with rods and comes of the eye
A

Visible light

44
Q

It interacts with molecules

A

UV light

45
Q

It interacts with electrons

A

Xrays

46
Q

The reduction in intensity that results from scattering and absorption

A

Electromagnetic energy attenuation

47
Q

Structures that absorb X-rays

A

Radiopaque (example: bones)

48
Q

Structures that transmit X-rays

A

Radiolucent (example: lung tissue)

49
Q

It states that the intensity of radiation at a location is inversely proportional to the square of distance from the source of radiation

A

Inverse square law

50
Q

Who is Max Planck?

A

He synthesized our understanding of electromagnetic radiation, On 1918: he received the Nobel prize

51
Q

It states that energy may be transformed from one form to another but cannot be created on destroyed

A

Law of conservation of energy

52
Q

States that matter can be neither created nor destroyed

A

Law of conservation of matter

53
Q

All radiation with wavelength longer than xray

A

Wave phenomenon

Physics Quiz (7 decks)

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